CVE-2026-100264
In JetBrains YouTrack before 2026.2.18991 stored SMTP server credentials could be disclosed by changing the server host
JetBrains YouTrack
CVSS
2.7LowExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.23%Chance of exploitation activity in the next 30 days, higher than 12% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
- 2026.2.18991YouTrackCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Affected versions 1
- YouTrackaffected: all versions before 2026.2.18991CVE List